Section 10352 Of Article 4. Vaccinations From California Food And Agricultural Code >> Division 5. >> Part 2. >> Chapter 3. >> Article 4.

. Each calf which is vaccinated pursuant to this chapter shall have an official tattoo placed in the right ear by the veterinarian who performs the service that shows the period within which the animal was vaccinated, or such other evidence of vaccination or identification as the department may by regulation specify.